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| author | Colin Ian King <colin.king@canonical.com> | 2021-06-02 11:06:59 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-06-03 09:54:33 -0600 |
| commit | 90bf3e28ef51aa3f480d2f2151813be669ba69ce (patch) | |
| tree | 3a9c1343dc69b41ce8b683674310cca850ec9b4f /block/blk-mq-sched.c | |
| parent | 0e0ccdecb3cff95a350b4364e7ebbaa754d0e47d (diff) | |
null_blk: Fix null pointer dereference on nullb->disk on blk_cleanup_disk call
The error handling on a nullb->disk allocation currently jumps to
out_cleanup_disk that calls blk_cleanup_disk with a null pointer causing
a null pointer dereference issue. Fix this by jumping to out_cleanup_tags
instead.
Addresses-Coverity: ("Dereference after null check")
Fixes: 132226b301b5 ("null_blk: convert to blk_alloc_disk/blk_cleanup_disk")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210602100659.11058-1-colin.king@canonical.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq-sched.c')
0 files changed, 0 insertions, 0 deletions